eeee eete eiei eiti epee epi- epie epip epit eppp eppy epte etee ette etti etty eyet eyey eype eyte ieet ieie iett iiie iiii iiit iitt ipet ipie ippy itep itet itie itty iyet iypt peep peet peip peit pepe pepi pete peti pett pety piep piet piip pipe pipi pipp pipy pite piti pitt pity piye ppie pppp pptt ppye pyep pyet pype pypy pyte pytt teet teie teip tepe tepi tepp tete teti tett teye tie- tiee tiei tiep tiet tiit tip- tipe tipi tipp tipt tite titi titp titt tiye tiyi tppp tpte tptp tttt tyee tyet typ- type typp typy tyte tyti tytt tyty yeep yeet yeie yeii yeit yepe yepp yete yeti yett yeye yeyi yiet yipe yite yiti yitp yyyy